Feature: 1. Plastic Material: This grass spike shoes plate is made of premium plastic materials for one time molding, with high strength and good toughness. More wear resistant and durable. 2. Keep Stable: Foot bare zinc alloy metal buckle straps keep the heel stable in place. More stable when using walking, no need to worry about falling. 3. Fast and Convenient: Just wear spiked sandals and walk on the lawn for fast and convenient lawn aeration, easier and cheaper than using a manual lawn aerator. 4. Scope of Applications: This garden grass loosening shoes tool is suitable for gardening, lawns, gardens, courtyards, flooring, also for the construction industry. 5. Gardening Tool: Used for loosening and aerating your lawn, allowing rain and fertiliser to penetrate more easily, and strengthening the roots to create a thicker, greener lawn. Specification: Item Type: Manual Lawn Scarifier Material: Plastic, Zinc alloy Weight: Approx. 891g / 31.4oz Nail Length: 57mm / 2.2in M6 Shoes Plate Length: Approx. 29.5cm / 11.6in Forefoot Plate Width: Approx. 13cm / 5.1in Rearfoot Plate Width: Approx. 11cm / 4.3in Use: For lawns, gardens, courtyards, flooring, also for the construction industry Scope of Application: Gardening. Package List: 4 x Shoe Strap1 Pack x Screws(27pcs Nails, 27pcs Nuts and 1pc Wrench)2 x Shoe Boards1 x English Instructions